I like the wheels you have now. If I were going to switch them, it'd be for the same rim, except in 15x7 up front and 15x8 in the rear instead of the stock 14x6's all around.
There's no sense in buying a different set of 14"ers... Either take them off and sell the wheels and tires as a package, and lose some money, or rock what you've got now till they wear out, and then keep them as extras and get yourself a nice new set of whatever you like.
And 2000.malibu.ls, I know the customer is always right, but 285 on a 6" rim is retarded.
The center of the tread will be gone in no time, since the tread surface bows outward due to the narrow rim width.
I had 275's on 7" rims, and the centers wore so much faster than the outer portion of the tread, they looked like BFG drag radials. And it wasn't because I was doing burnouts either. They were so wide, the L99 in my
Caprice couldn't even break one (no posi) loose... and it would boil the stock 215's...